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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Sperm is produced here






2. Implies the amount of estrogen production






3. Look for infection - split - and rupture of the penis






4. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






5. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






6. (male) pushes the testes upward toward the body for warmth or protection






7. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






8. 24 hours before end of estrus cycle






9. (FSH) causes egg to mature in females






10. When are dairy cattle dehorned?






11. Days which have increasing daylight hours

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12. 10-37 (21) days






13. Luteolysis happens because of the ____________ hormone






14. 14-19 (17) days






15. Depository for semen during insemination. where urine leaves the body






16. Check feet and legs - look for masculine traits in build such as crest and muscling






17. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






18. Urinary calculi.






19. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






20. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






21. Duct through penis that carries sperm and urine






22. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






23. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






24. Produce testosterone. located between the seminiferous tubules






25. Why does estrus happen before ovulation?






26. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






27. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






28. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






29. Not under a timeline - cow can not be sold as steak






30. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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31. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






32. 26 hours after estrus begins






33. Days which have decreasing daylight hours

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34. 1-2 days






35. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.






36. 19-23 (21) days






37. Start of the reproductive tract for the female. located outside of the body






38. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






39. What helps regulate spermatogenesis?






40. 1. brain function - 2. blood flow - 3. willing female






41. (FSH) causes egg to mature in females






42. Microscopic - make sure not sterile - very few bulls are actually tested






43. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






44. When are dairy cattle dehorned?






45. Parturition is controlled by...






46. Way to know everything is alright with the breeding male






47. ~305 days (altough often longer due to breeding difficulties)






48. Actual heat cycle (period)






49. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






50. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat